Power transformers have maximum efficiency at
Correct answer: B. Full load
- A. No load
- B. Full load
- C. Half load
- D. Double load
Explanation
Power transformers are designed to achieve maximum efficiency at full load because this is the condition under which they typically operate in real-world applications. At full load, the transformer balances core and copper losses, resulting in high efficiency, often above 90%. Operating at no load or half load does not optimize these losses, and double load conditions are beyond the transformer's rated capacity, leading to inefficiency and potential damage.
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About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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